What are symptoms of DAO deficiency?

DAO Deficiency and Histamine Intolerance

  • nasal congestion.
  • headaches.
  • itchy skin, rashes, and hives.
  • sneezing.
  • asthma and difficulty breathing.
  • irregular heartbeat (arrhythmia)
  • diarrhea, stomach aches, and digestive distress.
  • nausea and vomiting.

How is DAO deficiency diagnosed?

For the diagnosis of the varied pathologies and syndromes caused by the DAO deficiency can be performed a study of molecular genetics of diamine oxidase activity (DAO) (AOC1-V) and/or an in vitro diagnostic test to measure the level of activity of the enzyme DAO in plasma.

Is DAO deficiency common?

Due to the wide variety of symptoms derived from DAO deficiency, which represent chronic pathologies with a high prevalence in population, immediate research and advances on its origin and possible treatments are required.

How can I lower my histamine levels quickly?

Some foods low in histamine include:

  1. fresh meat and freshly caught fish.
  2. non-citrus fruits.
  3. eggs.
  4. gluten-free grains, such as quinoa and rice.
  5. dairy substitutes, such as coconut milk and almond milk.
  6. fresh vegetables except tomatoes, avocados, spinach, and eggplant.
  7. cooking oils, such as olive oil.

What supplements help with histamine intolerance?

Vitamins and minerals that may benefit people with histamine intolerance include:

  • vitamin B6.
  • vitamin C.
  • copper.
  • magnesium.
  • zinc.
  • calcium.
  • vitamin B1.
  • vitamin B12.

What can you eat on a low histamine diet?

Some foods low in histamine include:

  • fresh meat and freshly caught fish.
  • non-citrus fruits.
  • eggs.
  • gluten-free grains, such as quinoa and rice.
  • dairy substitutes, such as coconut milk and almond milk.
  • fresh vegetables except tomatoes, avocados, spinach, and eggplant.
  • cooking oils, such as olive oil.

Do DAO enzymes work?

Research shows that these supplements might offer relief from headaches, digestive issues, and skin reactions. While these studies show positive results, more research is needed to understand how DAO supplements work and if they can help reduce symptoms of histamine intolerance in the majority of people.

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